Path cannot be empty

ValueError: Path cannot be empty in /www/wwwroot/acgyw.xyz/usr/plugins/AMP/Action.php:516 Stack trace: #0 /www/wwwroot/acgyw.xyz/usr/plugins/AMP/Action.php(516): getimagesize() #1 /www/wwwroot/acgyw.xyz/usr/plugins/AMP/Action.php(508): AMP_Action::getSizeArr() #2 /www/wwwroot/acgyw.xyz/usr/plugins/AMP/Action.php(135): AMP_Action->GetPostImg() #3 /www/wwwroot/acgyw.xyz/var/Typecho/Router.php(138): AMP_Action->MIPpage() #4 /www/wwwroot/acgyw.xyz/index.php(23): Typecho_Router::dispatch() #5 {main}